Microsoft has put a lot of dollars and effort into Windows Phone, even going as far as to buy Finnish handset firm Nokia in order to gain traction in the smartphone space. But despite this investment Windows Phone's usage share has grown from about one percent to around two percent over the past 12 months.

Many weeks using the Nokia 1020 as my primary phone revealed it to be both a strong iPhone competitor and an example of why Microsoft has struggled to build a mobile juggernaut. Its superb camera will bring many users, but how does it stack up as a primary phone?

Nokia has been a leader in smartphone imaging for a long time and their PureView cameras are the best in the industry. A lead engineer announced his departure from Microsoft to help a competitor improve their cameras.

Nokia could have gone with Android a couple of years ago and had the leading Android camera phone line and maybe even leading smartphone brand today, but rolling out a Kindlefied version on low end hardware isn't a recipe for success.